Blue Def Diesel Exhaust Fluid - 2.5 Gal.

A non-toxic solution engineered to help diesel-powered vehicles reduce emissions and improve fuel economy. Engineered for use in Selective Catalytic Reduction (SCR) systems on diesel engines.Comprised of a high-purity synthetic urea and deionized water mixture that improves emissions and fuel economy. Injected into the exhaust stream with a specialized dosing module, BlueDEF’s water vaporizes, leaving ammonia molecules en route to the catalytic converter; once there, it converts NOx molecules into harmless nitrogen and water vapor, making for cleaner emissions.